Yuwell.
Do not use damaged components, mouthpiece, mask and air
tube.
Do not cover the main unit and AC adapter with a blanket or
towel, or any other type of cover during use.
When the main unit is in normal operation, in addition to cutting
off power supply and other necessary operations, do not touch
the main unit and AC adapter.
This device is approved for human use only.
Do not use or store the product where the device may be
exposed to toxic or volatile gases.
Do not use a mobile phone near the product.
Do not use the product when surrounded by flammable gas.
Provide close supervision when this device is used by children.
2. Notes on the power supply
Wipe off the dust on the AC adapter before use.
Do not use other non-certified AC adapters.
Do not operate the device with a damaged power cord or plug.
Do not wound the cord of AC adapter on the main unit or AC
adapter.
When not in use for a long time, unplug the AC adapter.
Unplug the adapter from the main unit after use.
When a power outage occurs during use, turn off the power
switch immediately and unplug the AC adapter.
After use and before cleaning, be sure to unplug the AC adapter.
Do not spill water or other liquids on the compressor and AC
adapter. These parts are not waterproof. If liquid spills on these
parts, immediately unplug the AC adapter and wipe off the liquid
with gauze or other soft absorbent material.
I. Sale
1. If there is any quality problem caused by non-human factors
within one week from the date of sale, the company is
responsible for the refund, replacement and repair; under normal
use and storage conditions, if there is any quality problem within
one year dating from the date of the product shipping out of the
factory, the company will provide free maintenance; if there is any
quality problem after one year since the date of the product
shipping out of the factory, the user can take invoice and
warranty card to service department, office or dealer, and the
company provides maintenance for parts with reasonable fees. If
the user cannot provide invoices, identify according to the
company letter or the date of manufacture with the extension of a
month.
2. The following cases are not covered by the warranty:
①
vulnerability consumables: filter sheet;
②
failure caused by
disassembling, repairing, or altering the product arbitrarily;
③
failure caused by accidental dropping in use or in the process of
moving;
④
damage caused by improper use;
⑤
water, medicine
and other liquid in the main unit caused by users;
⑥
failure
caused by wrong operation not following the instructions;
⑦
damaged caused by unforeseen natural disasters (such as:
floods, earthquakes, fires, etc.).
3. If necessary, please provide circuit diagrams and repair
information. If there is any difficult problem in repairing the
electrical circuit, please contact the manufacturer.
III. Sale and others
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